<div>
    <b>REQUIRED</b> The message body<br>
    Valid length range: 1 - 10000.<br>
    Message may include global variables, for example environment and currentBuild variables:<br>
    <code>
        hipchatSend "${env.JOB_NAME} ${env.BUILD_NUMBER} status: ${currentBuild.result} (<a href='${env.BUILD_URL}'>Open</a>)"
    </code>
</div>